Key parameters at a glance

A radius of 1.20 Earth radii
A mass of 1.87 Earth masses
Surface gravity around 1.30 g
Semi-major axis 2.0700 AU
Distance from Earth 3,979.10 light-years
Earth Similarity Index 0.942
Travel time at Voyager 1 speed 70,171,481 years

Context from the literature

KMT-2020-BLG-0414L is a white dwarf star about 4,000 light-years away in the constellation Sagittarius, which is orbited by an Earth-mass exoplanet and a brown dwarf.

Excerpted from Wikipedia · full article

1 sibling around KMT-2020-BLG-0414L

KMT-2020-BLG-0414L b shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
KMT-2020-BLG-0414L b this	Rocky Terrestrial	1.20	1.87	—	—	2021
KMT-2020-BLG-0414L c	Gas Giant	11.90	8,581.37	—	—	2021

KMT-2020-BLG-0414L b Planet Profile

Physical Specs

Radius

1.20 R⊕

Radius (Jupiter)

0.107 R♃

Mass

1.87 M⊕

Mass (Jupiter)

0.006 M♃

Density

5.95 g/cm³

Surface Gravity

1.30 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.942

HZ Position Unknown

Controversial No

Discovery

Year 2021

Method Microlensing

Facility KMTNet

Telescope 1.6 m wide-field telescope

Size rank in cohort

Rank by radius

#75of 570

top 13.0%

This planet

1.20R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-225 b 1.20 R⊕ Kepler-282 c 1.20 R⊕ Kepler-367 c 1.20 R⊕

Metric	Earth	KMT-2020-BLG-0414L b	Jupiter
Radius (R⊕)	1.00	1.20	11.21
Mass (M⊕)	1.00	1.87	317.83
Density (g/cm³)	5.51	5.95	1.33
Surface Gravity (g)	1.00	1.30	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	1.870 M⊕	Direct mass measurement (not derived).

Percentile among Rocky Terrestrial cohort

Radius 1.200 R⊕ · percentile 84 / cohort 570

Mass 1.870 M⊕ · percentile 77 / cohort 570

Distance 1,220.00 pc · percentile 96 / cohort 566

ESI 0.942 · percentile 93 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

— days

Semi-major axis

2.0700 AU

Eccentricity

—

Inclination

— °

Year Length

Orbital period for this planet has not yet been measured.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.942

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Zang et al. 2021

Instrument

18k Mosaic CCD camera

Publication

2021-11

Observation locale

Ground

Discovery cohort

Planets confirmed in 2021 at KMTNet (11 shown).

OGLE-2019-BLG-1053L b · Super-Earth KMT-2018-BLG-1025L b · Sub-Neptune KMT-2021-BLG-0322L b · Gas Giant KMT-2019-BLG-0371L b · Gas Giant KMT-2019-BLG-1715L b · Gas Giant KMT-2018-BLG-1976L b · Gas Giant KMT-2017-BLG-2509L b · Gas Giant KMT-2018-BLG-1996L b · Gas Giant KMT-2018-BLG-1743L b · Gas Giant KMT-2016-BLG-2605L b · Gas Giant KMT-2020-BLG-0414L c · Gas Giant

Host System: KMT-2020-BLG-0414L

Spectral Class

Unknown

Effective Temperature

—

Estimated Age

—

Stellar Radius

—

Stellar Mass

0.490 M☉

Metallicity [Fe/H]

—

Distance

1,220.00 parsec

Light-years 3,979.10 ly

V-band magnitude

— mag

Voyager-speed travel 70,171,481 yr

Wikipedia →

Similar Worlds

PSR B0329+54 b

Rocky Terrestrial · Unknown

Radius 1.22 R⊕ · 1,646.9 ly

OGLE-2013-BLG-0341L B b

Rocky Terrestrial · Unknown

Radius 1.16 R⊕ · 2,971.3 ly

OGLE-2016-BLG-1195L b

Rocky Terrestrial · Unknown

Radius 1.11 R⊕ · 12,752.7 ly

OGLE-2016-BLG-0007L b

Rocky Terrestrial · Unknown

Radius 1.09 R⊕ · 14,024.7 ly

PSR B1257+12 b

Rocky Terrestrial · Unknown

Radius 0.34 R⊕ · 1,956.9 ly

Explore Related Categories

Rocky Terrestrial Planets Microlensing Discoveries KMTNet Mission